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Diffstat (limited to 'src/old/mixer.txt')
| -rw-r--r-- | src/old/mixer.txt | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/src/old/mixer.txt b/src/old/mixer.txt deleted file mode 100644 index 2009c2a..0000000 --- a/src/old/mixer.txt +++ /dev/null @@ -1,486 +0,0 @@ -Several people have asked me for the sample code I use to program
-the mixer in Windows. Since it's a fairly short sample and there's
-clearly some interest, I thought I'd post it directly to the newsgroup.
-Here it is ... enjoy! (?)
-
-Julian
-
-// Example routine that manipulates the mixer controls for Win32
-// This code is not a stand-alone application ...
-//
-// It's also not very pretty ...
-//
-// But then, neither is the API ...
-//
-// Julian Bunn, 1998, julianb@altavista.net
-
-
-#include <windows.h>
-#include <mmsystem.h>
-
-
-MIXERCONTROLDETAILS mixDetailsMic,mixDetailsSpk,mixDetailsLin;
-LONG
-lMaximumSpk,lMaximumMic,lMaximumLin,lMinimumMic,lMinimumSpk,lMinimumLin;
-
-int nMixerDevs;
-int nMicMixID;
-
-LPHMIXER hMixer;
-UINT IdMixer;
-
-
-/****************************************************************************
-
- Function: ProgramInitMixer()
-
- PURPOSE : Initialises the mixer
-*****************************************************************************/
-
-LONG WINAPI ProgramInitMixer()
-{
- UINT iS,iD,iDC,iC, itype;
- UINT volume;
- MMRESULT mmres;
- MIXERCAPS mixCaps;
- MIXERLINE mixLine;
- MIXERLINECONTROLS mixControls;
- MIXERCONTROL mixClist[50];
- MIXERCONTROLDETAILS mixDetails;
- MIXERCONTROLDETAILS_UNSIGNED mixValue;
- MIXERCONTROLDETAILS_BOOLEAN mixMute;
- MIXERCONTROLDETAILS_BOOLEAN mixBoolean[50];
- MIXERCONTROLDETAILS_LISTTEXT mixList[50];
- BOOL bDoneMike = FALSE;
- BOOL bDoneSpkr = FALSE;
- UINT LineID = 0;
-
- if(!bMixerOpened) {
-// check first if we have a mixer
- if((nMixerDevs = mixerGetNumDevs()) < 1) {
- return (Program_ERROR);
- }
-
-// really need to pop up a chooser for which mixer device, in
-// cases where there is more than one.
-// In the meantime, I select the last one listed
-
- IdMixer = nMixerDevs-1;
-
- mmres = mixerOpen((LPHMIXER) &hMixer, IdMixer, (DWORD) 0, (DWORD)
-NULL,
- MIXER_OBJECTF_MIXER);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-
- bMixerOpened = TRUE;
- }
-
- mmres = mixerGetDevCaps(IdMixer, (LPMIXERCAPS) &mixCaps,
-sizeof(MIXERCAPS));
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-// Set the manufacturer's name for the mixer ...
- SetDlgItemText(hWndDialogBox,IDC_MIXERNAME,mixCaps.szPname);
- if(nMixerDevs>1) {
- DialogBox(g_hInstance,MAKEINTRESOURCE(IDD_INFOMESSAGE1),
-hWndDialogBox, DialogBoxCallback);
- }
-
-
-// Loop over the destination mixer lines
- for (iD=0;iD<mixCaps.cDestinations;iD++) {
- mixLine.cbStruct = sizeof(MIXERLINE);
- mixLine.dwDestination = (DWORD) iD;
- mixLine.dwSource = (DWORD) 0;
-// Get information on this line
- mmres = mixerGetLineInfo(hMixer, (LPMIXERLINE) &mixLine,
- MIXER_GETLINEINFOF_DESTINATION);
-
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-
-// I select types I'm interested in: the speaker output, the input
-(voice and wave)
- itype = 0;
- if(mixLine.dwComponentType == MIXERLINE_COMPONENTTYPE_DST_SPEAKERS)
-itype = 1; // Output for speakers ... only allow WAVEOUT
- if(mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_DST_VOICEIN) itype = 2; // Input for ADC ...
-only allow Microphone (or AUX)
- if(mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_DST_WAVEIN) itype = 2; // Input for ADC ...
-only allow Microphone (or AUX)
- if(itype == 2 && !bMicrophone) {
- itype = 3;
- }
-
-
- mixControls.cbStruct = sizeof(MIXERLINECONTROLS);
- mixControls.dwLineID = mixLine.dwLineID;
- mixControls.cControls = mixLine.cControls;
- mixControls.cbmxctrl = sizeof(mixClist[0]);
- mixControls.pamxctrl = (LPMIXERCONTROL) &mixClist[0];
-// Get the controls for the current destination mixer line
- mmres = mixerGetLineControls(hMixer,
- (LPMIXERLINECONTROLS) &mixControls,
- MIXER_GETLINECONTROLSF_ALL);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- for (iDC=0;iDC<mixLine.cControls;iDC++) {
-// For this control, I make various checks on its type
- if(mixClist[iDC].dwControlType == MIXERCONTROL_CONTROLTYPE_MUX ||
- mixClist[iDC].dwControlType ==
-MIXERCONTROL_CONTROLTYPE_MIXER) {
-
-// This is a control that defines a set of connections ... get all the
-types, and the values
-// for the connection
- mixDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
- mixDetails.dwControlID = mixClist[iDC].dwControlID;
- mixDetails.cChannels = 1;//mixLine.cChannels;
- mixDetails.hwndOwner = (HWND) mixClist[iDC].cMultipleItems;
- mixDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_LISTTEXT);
- mixDetails.paDetails = (LPMIXERCONTROLDETAILS_LISTTEXT)
-&mixList[0];
- mmres = mixerGetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_GETCONTROLDETAILSF_LISTTEXT);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-
- mixDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
- mixDetails.dwControlID = mixClist[iDC].dwControlID;
- mixDetails.cChannels = 1;//mixLine.cChannels;
- mixDetails.hwndOwner = (HWND) mixClist[iDC].cMultipleItems;
- mixDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_BOOLEAN);
- mixDetails.paDetails = (LPMIXERCONTROLDETAILS_BOOLEAN)
-&mixBoolean[0];
- mmres = mixerGetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_GETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-// In this application, I want to set only the microphone or line as
-input sources ...
-
-for(iS=0;iS<mixClist[iDC].cMultipleItems;iS++) {
- mixBoolean[iS].fValue = FALSE;
- if(itype == 2 && mixList[iS].dwParam2
-== MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE) {
- mixBoolean[iS].fValue = TRUE;
- bDoneMike = TRUE;
- }
- if(itype == 3 && (mixList[iS].dwParam2
-== MIXERLINE_COMPONENTTYPE_SRC_LINE ||
- mixList[iS].dwParam2 ==
-MIXERLINE_COMPONENTTYPE_SRC_AUXILIARY)) {
- if(strncmp(mixList[iS].szName,"Line",4) == 0) {
- mixBoolean[iS].fValue = TRUE;
- bDoneMike = TRUE;
- }
- }
- if(itype == 1 && mixList[iS].dwParam2 ==
-MIXERLINE_COMPONENTTYPE_DST_SPEAKERS) {
- mixBoolean[iS].fValue = TRUE;
- bDoneSpkr = TRUE;
- }
- }
-// I've prepared the settings accordingly ... now I set them in the
-mixer
- mmres = mixerSetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_SETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- }
- if(mixClist[iDC].dwControlType == MIXERCONTROL_CONTROLTYPE_VOLUME ||
-
- mixClist[iDC].dwControlType == MIXERCONTROL_CONTROLTYPE_TREBLE ||
-
- mixClist[iDC].dwControlType == MIXERCONTROL_CONTROLTYPE_BASS) {
-// This is a control of a volume
- volume = 0;
-
- mixDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
- mixDetails.dwControlID = mixClist[iDC].dwControlID;
- mixDetails.cChannels = (DWORD) 1;
- mixDetails.hwndOwner = NULL;
- mixDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
- mixDetails.paDetails = (LPMIXERCONTROLDETAILS_UNSIGNED)
-&mixValue;
- mmres = mixerGetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_GETCONTROLDETAILSF_VALUE);
-
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-// I want to set all volumes to maximum, treble and bass boost to
-minimum
- if(mixClist[iDC].dwControlType ==
-MIXERCONTROL_CONTROLTYPE_VOLUME) {
- if(mixValue.dwValue != 0) mixValue.dwValue =
-mixClist[iDC].Bounds.lMaximum;
- } else {
- mixValue.dwValue = mixClist[iDC].Bounds.lMinimum;
- }
- mmres = mixerSetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_SETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- }
- if(mixClist[iDC].dwControlType == MIXERCONTROL_CONTROLTYPE_MUTE) {
-// A mute control _in principle_ I've already set all these up ...
- mixDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
- mixDetails.dwControlID = mixClist[iDC].dwControlID;
- mixDetails.cChannels = (DWORD) 1;
- mixDetails.hwndOwner = NULL;
- mixDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_BOOLEAN);
- mixDetails.paDetails = (LPMIXERCONTROLDETAILS_BOOLEAN) &mixMute;
- mmres = mixerGetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_GETCONTROLDETAILSF_VALUE);
- mixMute.fValue = mixClist[iDC].Bounds.lMinimum;
- mmres = mixerSetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_SETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- }
- if(mixClist[iDC].dwControlType == MIXERCONTROL_CONTROLTYPE_ONOFF) {
-// An "on-off" control ... sort of like a mute, but different (used e.g
-for AGC)
- mixDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
- mixDetails.dwControlID = mixClist[iDC].dwControlID;
- mixDetails.cChannels = (DWORD) 1;
- mixDetails.hwndOwner = NULL;
- mixDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_BOOLEAN);
- mixDetails.paDetails = (LPMIXERCONTROLDETAILS_BOOLEAN) &mixMute;
- mmres = mixerGetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_GETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- mixMute.fValue = mixClist[iDC].Bounds.lMinimum;
- mmres = mixerSetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_SETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- }
-
- }
-
-
- iDC = mixLine.cConnections;
-// Now I start looking over all the source lines coming into this mixer
-line ..
- for (iS=0;iS<iDC;iS++) {
- mixLine.cbStruct = sizeof(MIXERLINE);
- mixLine.dwDestination = (DWORD) iD;
- mixLine.dwSource = (DWORD) iS;
-
- mmres = mixerGetLineInfo(hMixer, (LPMIXERLINE) &mixLine,
- MIXER_GETLINEINFOF_SOURCE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-
- mixControls.cbStruct = sizeof(MIXERLINECONTROLS);
- mixControls.dwLineID = mixLine.dwLineID;
- mixControls.cControls = mixLine.cControls;
- mixControls.cbmxctrl = sizeof(mixClist[0]);
- mixControls.pamxctrl = (LPMIXERCONTROL) &mixClist[0];
- mmres = mixerGetLineControls(hMixer,
- (LPMIXERLINECONTROLS) &mixControls,
- MIXER_GETLINECONTROLSF_ALL);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-// for this source line ... loop over all the control. Very like what
-was done above for the
-// destination line ...
- for(iC=0;iC<mixLine.cControls;iC++) {
- if(mixClist[iC].dwControlType ==
-MIXERCONTROL_CONTROLTYPE_VOLUME) {
-
- mixDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
- mixDetails.dwControlID = mixClist[iC].dwControlID;
- mixDetails.cChannels = (DWORD) 1;
- mixDetails.hwndOwner = NULL;
- mixDetails.cbDetails =
-sizeof(MIXERCONTROLDETAILS_UNSIGNED);
- mixDetails.paDetails = (LPMIXERCONTROLDETAILS_UNSIGNED)
-&mixValue;
-// I want to make a copy of the waveout, microphone, aux and line lines
-for later use .... hence memcpy
- if(itype == 1 && mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT) {
-
-memcpy(&mixDetailsSpk,&mixDetails,sizeof(MIXERCONTROLDETAILS));
- lMaximumSpk = mixClist[iC].Bounds.lMaximum;
- lMinimumSpk = mixClist[iC].Bounds.lMinimum;
- }
- if(itype == 2 && mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE) {
-
-memcpy(&mixDetailsMic,&mixDetails,sizeof(MIXERCONTROLDETAILS));
- lMaximumMic = mixClist[iC].Bounds.lMaximum;
- lMinimumMic = mixClist[iC].Bounds.lMinimum;
- }
- if(itype == 3 &&
-(mixLine.dwComponentType == MIXERLINE_COMPONENTTYPE_SRC_LINE ||
- mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_AUXILIARY)) {
-// I'm not sure why I had to check the string like this ...
- if(strncmp(mixLine.szName,"Line",4) == 0) {
-
-memcpy(&mixDetailsLin,&mixDetails,sizeof(MIXERCONTROLDETAILS));
- lMaximumLin = mixClist[iC].Bounds.lMaximum;
- lMinimumLin = mixClist[iC].Bounds.lMinimum;
- }
- }
-
-
- mmres = mixerGetControlDetails(hMixer,
-
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_GETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-// Now I'm going to set the input levels the way I want them ..
- mixValue.dwValue = mixClist[iC].Bounds.lMinimum;
- if(itype == 1 && mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT) {
- mixValue.dwValue = mixClist[iC].Bounds.lMaximum;
- }
- if(itype == 2 && mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE) {
- mixValue.dwValue = mixClist[iC].Bounds.lMaximum;
- }
- if(itype == 3 &&
-(mixLine.dwComponentType == MIXERLINE_COMPONENTTYPE_SRC_LINE ||
- mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_AUXILIARY)) {
- if(strncmp(mixLine.szName,"Line",4) == 0) {
- mixValue.dwValue = mixClist[iC].Bounds.lMaximum;
- }
- }
-
- mmres = mixerSetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_SETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- }
- if(mixClist[iC].dwControlType ==
-MIXERCONTROL_CONTROLTYPE_MUTE) {
- mixDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
- mixDetails.dwControlID = mixClist[iC].dwControlID;
- mixDetails.cChannels = (DWORD) 1;
- mixDetails.hwndOwner = NULL;
- mixDetails.cbDetails =
-sizeof(MIXERCONTROLDETAILS_BOOLEAN);
- mixDetails.paDetails = (LPMIXERCONTROLDETAILS_BOOLEAN)
-&mixMute;
- mmres = mixerGetControlDetails(hMixer,
-
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_GETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-// I run the risk of inverting my boolean selections, so jump out if
-already done ...
- if(itype != 0 && (bDoneSpkr || bDoneMike)) break;
-
- mixMute.fValue = mixClist[iC].Bounds.lMaximum;
- if(itype == 1 && mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT) {
- mixMute.fValue = mixClist[iC].Bounds.lMinimum;
- }
- if(itype == 2 && mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE) {
- mixMute.fValue = mixClist[iC].Bounds.lMinimum;
- }
- if(itype == 3 &&
-(mixLine.dwComponentType == MIXERLINE_COMPONENTTYPE_SRC_LINE ||
- mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_AUXILIARY)) {
- if(strncmp(mixLine.szName,"Line",4) == 0) {
- mixMute.fValue = mixClist[iC].Bounds.lMinimum;
- }
- }
-
- mmres = mixerSetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_SETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- }
- if(mixClist[iC].dwControlType == MIXERCONTROL_CONTROLTYPE_ONOFF)
-{
- mixDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
- mixDetails.dwControlID = mixClist[iC].dwControlID;
- mixDetails.cChannels = (DWORD) 1;
- mixDetails.hwndOwner = NULL;
- mixDetails.cbDetails =
-sizeof(MIXERCONTROLDETAILS_BOOLEAN);
- mixDetails.paDetails = (LPMIXERCONTROLDETAILS_BOOLEAN)
-&mixMute;
- mmres = mixerGetControlDetails(hMixer,
-
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_GETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
-
- mixMute.fValue = mixClist[iC].Bounds.lMinimum;
- if(itype == 1 && mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT) {
- mixMute.fValue = mixClist[iC].Bounds.lMaximum;
- }
- if(itype == 2 && mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE) {
- mixMute.fValue = mixClist[iC].Bounds.lMaximum;
- }
- if(itype == 3 &&
-(mixLine.dwComponentType == MIXERLINE_COMPONENTTYPE_SRC_LINE ||
- mixLine.dwComponentType ==
-MIXERLINE_COMPONENTTYPE_SRC_AUXILIARY)) {
- if(strncmp(mixLine.szName,"Line",4) == 0) {
- mixMute.fValue = mixClist[iC].Bounds.lMaximum;
- }
- }
-
- mmres = mixerSetControlDetails(hMixer,
- (LPMIXERCONTROLDETAILS) &mixDetails,
- MIXER_SETCONTROLDETAILSF_VALUE);
- if(mmres != MMSYSERR_NOERROR) {
- return (Program_ERROR);
- }
- }
- }
- }
- }
- return Program_NOERROR;
-}
-
-
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